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i386.md (movmsk_df): New insn.

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* config/i386/i386.md (movmsk_df): New insn.
	(signbitdf): Split out of signbit<mode>2.  Generate movmsk_df
	sequence for TARGET_SSE_MATH.

From-SVN: r164630
This commit is contained in:
Uros Bizjak 2010-09-26 12:34:57 +02:00
parent 7725086e26
commit d355d5ea50
2 changed files with 69 additions and 18 deletions
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24
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2010-09-26 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.md (movmsk_df): New insn.
(signbitdf): Split out of signbit<mode>2. Generate movmsk_df
sequence for TARGET_SSE_MATH.
2010-09-26 Richard Sandiford <rdsandiford@googlemail.com>
* config/mips/mips.c (mips_builtin_decls): Declare.
@ -82,8 +88,7 @@
const_value_known.
(cgraph_externally_visible_p): Use cgraph_used_from_object_file_p.
(function_and_variable_visibility): Set resolution for local vars
and functions.
use varpool_used_from_object_file_p.
and functions; use varpool_used_from_object_file_p.
* varasm.c (resolution_to_local_definition_p, resolution_local_p): New
static functions.
(default_binds_local_p_1): Use resolutoin info.
@ -121,16 +126,17 @@
* tree.c (local_define_builtin): Handle ECF_LEAF.
(build_common_builtin_nodes): Set ECF_LEAF where needed.
* tree.h (ECF_LEAF): New.
* ipa-reference.c (propagate_bits): For leaf calls propagate ever overwrittable
and unavailable functions.
* ipa-reference.c (propagate_bits): For leaf calls propagate ever
overwrittable and unavailable functions.
(ipa_init): Put all_module_statics into optimization_summary_obstack.
(copy_global_bitmap): Do not copy all_module_statics.
(read_write_all_from_decl): Use cgraph_node argument; handle ECF_LEAF.
(propagate): Handle overwritable and unavailable leaf functions;
initialize global info for overwritable and unavailable leaf functions;
do not free all module statics.
(ipa_reference_get_not_read_global, ipa_reference_get_not_written_global):
leaf calls don't clobber local statics.
(ipa_reference_get_not_read_global,
ipa_reference_get_not_written_global): leaf calls don't clobber
local statics.
* calls.c (flags_from_decl_or_type): Handle leaf.
* tree-cfg.c (stmt_can_make_abnormal_goto): Leaf functions can't do
abnormal gotos.
@ -138,9 +144,7 @@
2010-09-24 Basile Starynkevitch <basile@starynkevitch.net>
* gengtype.c: Reindented.
* gengtype.h: Reindented.
* gengtype-parse.c: Reindented.
2010-09-24 Jan Hubicka <jh@suse.cz>
@ -203,11 +207,11 @@
2010-09-24 Iain Sandoe <iains@gcc.gnu.org>
Dominique Dhumieres <dominiq@lps.ens.fr>
PR bootstrap/45751
* gcc/config/darwin-driver.c (darwin_default_min_version):
Adjust size passed to memcpy in two places.
2010-09-24 Richard Guenther <rguenther@suse.de>
* c-decl.c (pop_scope): Always set file-scope DECL_CONTEXT.

63
gcc/config/i386/i386.md
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@ -14980,18 +14980,65 @@
DONE;
})
(define_expand "signbit<mode>2"
(define_expand "signbitxf2"
[(use (match_operand:SI 0 "register_operand" ""))
(use (match_operand:X87MODEF 1 "register_operand" ""))]
"TARGET_USE_FANCY_MATH_387
&& !(SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)"
(use (match_operand:XF 1 "register_operand" ""))]
"TARGET_USE_FANCY_MATH_387"
{
rtx mask = GEN_INT (0x0200);
rtx scratch = gen_reg_rtx (HImode);
emit_insn (gen_fxam<mode>2_i387 (scratch, operands[1]));
emit_insn (gen_andsi3 (operands[0], gen_lowpart (SImode, scratch), mask));
emit_insn (gen_fxamxf2_i387 (scratch, operands[1]));
emit_insn (gen_andsi3 (operands[0],
gen_lowpart (SImode, scratch), GEN_INT (0x200)));
DONE;
})
(define_insn "movmsk_df"
[(set (match_operand:SI 0 "register_operand" "=r")
(unspec:SI
[(match_operand:DF 1 "register_operand" "x")]
UNSPEC_MOVMSK))]
"SSE_FLOAT_MODE_P (DFmode) && TARGET_SSE_MATH"
"%vmovmskpd\t{%1, %0|%0, %1}"
[(set_attr "type" "ssemov")
(set_attr "prefix" "maybe_vex")
(set_attr "mode" "DF")])
;; Use movmskpd in SSE mode to avoid store forwarding stall
;; for 32bit targets and movq+shrq sequence for 64bit targets.
(define_expand "signbitdf2"
[(use (match_operand:SI 0 "register_operand" ""))
(use (match_operand:DF 1 "register_operand" ""))]
"TARGET_USE_FANCY_MATH_387
|| (SSE_FLOAT_MODE_P (DFmode) && TARGET_SSE_MATH)"
{
if (SSE_FLOAT_MODE_P (DFmode) && TARGET_SSE_MATH)
{
emit_insn (gen_movmsk_df (operands[0], operands[1]));
emit_insn (gen_andsi3 (operands[0], operands[0], const1_rtx));
}
else
{
rtx scratch = gen_reg_rtx (HImode);
emit_insn (gen_fxamdf2_i387 (scratch, operands[1]));
emit_insn (gen_andsi3 (operands[0],
gen_lowpart (SImode, scratch), GEN_INT (0x200)));
}
DONE;
})
(define_expand "signbitsf2"
[(use (match_operand:SI 0 "register_operand" ""))
(use (match_operand:SF 1 "register_operand" ""))]
"TARGET_USE_FANCY_MATH_387
&& !(SSE_FLOAT_MODE_P (SFmode) && TARGET_SSE_MATH)"
{
rtx scratch = gen_reg_rtx (HImode);
emit_insn (gen_fxamsf2_i387 (scratch, operands[1]));
emit_insn (gen_andsi3 (operands[0],
gen_lowpart (SImode, scratch), GEN_INT (0x200)));
DONE;
})